That instantly recognizable whistle from Kill Bill wasn’t originally created for Quentin Tarantino’s film. The haunting melody first appeared in the 1968 British thriller Twisted Nerve, where it was associated with Hywel Bennett’s character. Decades later, Tarantino brought the eerie tune into Kill Bill, introducing it to an entirely new generation. It’s a perfect example of his talent for pulling memorable pieces from cinema history and giving them a completely new life.